Cash-register.



JAN. 14, 3.908.

'FATEWTED :':LON FILED MALE. 9. 1966.

L p. P A

2 SHEETS-SHEET l.

PATENTED JAN. 14, 1908.

S. HLLWOOD.

H REGISTER AYPLIGATION HLBD MAR. 9, 150s.

2 SHEETS-SHEET 2.

of @W4 f 1p1/ff to overthrow.

compari UNITED STATES PATENT OEEICE.

HENRY s. nALLwoon, or COLUMBUS, OHIO, AssIGNOR To THE INTERNATiONAL REGISTER COMPANY, OF COLUMBUS, OHIO, A CORPORATION OE OHIO.

CASH-REGISTER.

To all whom it may concern: Beit known that I, IENRY S. HALLwooD, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Cash-Registers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings. f

This invention relates to cash registers, and it has forits objects the improvement of the constructions shown, for example, in the patent to Emary, No. 750,272 or in my application, Serial No. 711,329. In each of said constructions, the re ister operating pawls are, maintained in loc ed engagement with the adding wheels during their advance movement, and are leftlocked to the said wheels whenv the drawer is closed. ln my resent invention, these pawls are unlocked Irom the adding wheels at this time, and are, in fact, locked into the wheels only in case an attempt is made to cause the said wheels The mechanism for accomplishing this result is illustrated in the aoying drawing, in which Figure 1 is a transverse sectional view throu h a cash.register, such as is shownin the aigoresaid atent and application,show ing the cash rawer closed and the parts in their normal positions; Fig. 2 is a view similar toy Fig. 1 except-that the drawer is just starting on its closing movement, and one of the pawls has been moved in to engagement with the corresponding adding Wheel; and Fig. 3 showsl the position the adding pawls assume in case it is attempted to cause the addin Wheels to overthrow, the pawl then being ocked to the wheel.

In some constructions of cash registers manufactured by me, dilliculty was experienoed .in having the adding wheels Overthrown by violently hammering on` the cash drawer, in some instances when the drawer was o ening, and, in others, when the drawer was c osing. It was for the purpose ofovercoming this difficulty that the 4forms of over- 'ere f l Referring. now t'o, the drawings, in which the same reference characters designate the throughout the .differentl views,-v

throw preventers shownfinfthe said patent A9nd a 'plication aswell Aasin the present case evised.

same.. parts Specification of Letters Patent. Application iled March 9. 1906. Serial No. 305,036.

' rammed Jan. 14, 1908.

1 represents one of the side frames of the cash register, between which` and its corre sponding frame, not shown, the operating parts of the register1 are supported.

2-is the cash drawer, which is mounted to slide in the lower Apart of the -4frame, said drawer furnishing-the primary means for operating the machine, as will hereinafter appear. The drawer is normally held in closed position by meansof 'a latch 3, said latch being under contro] of the release key 4. As these parts are common in machines of this type, and are fullyvset forth in the patent and a plication above referred to, it 1s not deeme necessary to describe the same any 'more fully herein.

5 is the main shaft whichpasses centrally through the machine,` and `upon which are su ported'the. registering wheels, the operating yokes 7 the main operating bar or lever 8 ,and the detent plates 9. The yokes 7 are each provided with'eccentric ste ped segments` 10, and the main operating ever 8 is" also provided with transfer-operating mechanism 11. In the iront of the machine are vertical rows of keys 12, there being a row of keys for each one of the stepped segments 10, said keys being adapted when depressed, to project withinv the plane of movement of their corresponding stepped segment, and to arrest the latter in the position correspondingtov the value of the depressed key.

With the exception of the main operating lever, the parts above referred to are comw mon in machines of this type, and reference may be made to the above named patent and application for a more specific disclosure thereof. In said patent and application, the main operatinglever 8 'is Shown as being connected with a main yoke which extends round about the yokes- 7. -ln my present invention, no main yoke is employed, but

the lever proper is journaled at one end upon the centralshaft 45, and rests with its opposite end upon a roller 13 that is carried by the drawer 2.' The main lever forms a support .for the yokes `7 when the drawer'is in closed position, and it alsov forms a means for returning these yokes to normal position While'the. drawer is closing'. Also pivoted upon the main shaft `5, and alternating withthe registering wheels `k6, are p'awl-carrymg arms 14, said arms projecting rearwardly for some distance beyond the peripheries of the adding wheels. The yokes 7 are nested one within the other, and the pawl carr 'ng levers are each provided with stems 15 W rich are adapted to rest upon these yokes, whereby the movement of the pawl carrying levers is controlled by the yokes.

Pivoted to the levers 14 directly back of the registering wheels are operating or actuating pawls 1-6, said pawls being adapted to engage with the teeth of the registering wheels, whereby the latter are turned as the Apawl carrying arms are lifted during the closing movement of the drawer. As is shown in the patent to Emary, above referred to, these operating pawls are each provided with'weighted extensions 17, whereby the pawls are normally held out of engagement with the registering wheels, springs 18, one for each pawl, assisting in disengaging the pawls from the wheels. In order to prevent the pawls from swinging too far in their movement away from the wheels, the pawl carrying varms 14 are each rovided with a pin 19 that projects into t e plane of the weighted arm 17 .of the corresponding pawl and forms a stop therefor.

As will be understood, when the main operating lever 8 is swung upwardly, it picks up the yokes 7 and carries them back to normal position, said yokes lifting the pawl carryihg arms by means of the stems 15. Means must be provided for causing the operating pawls to be thrown into engagement with their corresponding registering wheels before the pawl carrying arms start on their upward movements. For accomplishingthis result, I connect with the main operating lever 8 an extension 20 which carries an upwardly projecting spring plate 21, said plate being adapted to engage'with the rearward ends of l the weighted arms, 17' on the operating pawls,

Vand to swing said pawls into engagement wheels prior to the begin-- with the adding ning of the movement of the Apawl 'carrying levers. Fig. 2-shows one pawl carrying lever being returned to normal position, and also shows the manner in which the operating pawls are thrown into engagement with the registering wheels by the plate 21. If, with the parts=in the position thus shown, the drawer 2 should be struck aviolent blow, the main lever, the yokes 7, the pawl carrying arms and the adding wheelswould be iven such a shock that thelatter would be iable to be overthrown, unless some means were provided to prevent such operation. With this end in view, `I pivot to each of the pawl carrying arms 14 at the rear of and above the operating pawls,'a detent pawl 22,

said detent pawl being connected with its corresponding operating pawl by the 'spring 18, heretofore referred to, said spring tend- 'wheel. In order to do this, the spring plate pawl forwardly. Fig. 1 shows these detent and operating pawls in their normal positions from which it will be seen that they are normally separated `by the upper edge ofthe spring plate 21.

When the drawer is opened and the main operating lever descends, the plate 21 is drawn away' from between the pawls, and the hook on the detent pawl rests against the rear edge of the'weighted arms 17, as shown in the upper part of Fig. 2. the main lever returns, the plate 21 engages with the rear end of the weighted arm and lifts the same into the position shown in the lower part of Fig. 2, where the lower edge of the weight 'is substantially in line with the lower surface of its pawl carr ing arm. When thus lifted, the detent paw 2.2 snaps forwardly, bringing its hooked end in such position that, when the parts are overthrown, as shown in Fig. 3, the detent pawl will catch the weighted arm of the operating pawl and revent the latter pawl fromdisengaging ful y fromthe registeringl wheel. It will thus be seen that the detent pawl 'has no effect upon the. 90 operating pawl unless the parts are `overthrown, as hereinbefore stated.

When the parts are returned to normal position, as is shown in Fig. .1, I desire to unlock the operating pawls from the registering 21 must be thrown backwardly away from the actuating pawls, and the detentpawls 22 must also be thrown out of operative relation with the actuating pawls.- Just prior to the end of the closing movement of the cash drawer, the relative positions of the spr' plate 21, the operating pawls and the detent pawls are shown in the lower part of Fig. 2. In order to push the said plate 21rearwardly 105 so as to unlock the registering wheels, I pivot upon a rod 23, an arm 24, said arm extend-v ing downwardlyy and rearwardly, and 4carrying at its free end a pin 25 that projects 1n. front of the plate 21, when the drawer is sub- 110 4stantially closed. The arm 24 is` lifted at the end of the closing movement of the drawer A through the medium of a' link 26 that is connected at its upper end to the arm 24 and at its lower end to a lever 27. This lever isfpiv- 115 oted to a cross rod 28 in the front part of the machine, and extends rearwardl to a` point just in front of and 'above the rol er 13 on the cash drawer, when the latteris closed. lAt

its rear end the lever is provided with'a )iv- 120 otedby-pass pawl29, said pawl extending downwardly so 'as to normally project in front of the roller` 13, as shown 1n Fig. 1. The upper-end of the pawl 29 is rovided with a pin SO'that projects over tllie upper 135 edge of the lever 27, and a springl draws the end of the vpawl forwardly'soas to normally maintain contact between thepin 30 and the lever. From this descriptiomit willI 65 to lthrow the lower end of the'detent l be understood that when the drawer open, 13g

arm 24 and causing the pin 25 to push the plate'21` rearwardly until the parts assume the position shown in Fig. 1. As soon as the roller 13 has passed beyond the pawl 29, the

"latter lwilldrop.inffront of theroller, which will permit the arm 24 to assume its original. position, with the pin. 2 5l out of contact with' the late 21.'-

hile I` havenecessarily shown a specificA mechanism for accomplishing the results herein set forth, I desire it to be understood that I do not intend to limit my claims to such mechanism any further than is made necessary by the specificfterms employed therein or by the prior s tate'of` the art.

I claiin: 1. In ya register, an adding member, a pawl fr moving said member to cause the saine to add, mechansrn'for moving said pawl, and

means for preventingthe overthrow oij said member,l Saidmeans becoming operative only when anattempt is made to produce overthrow of the member and before thev pawl has come to rest at the end of its operative stroke, .I i

2.- In aregister, an adding wheel, a pawl for turning said wheel, mechanism for moving said pawland means for preventing the overthrow of said wheel, said means become operative only when an attempt is made. to produce overthrow of the Wheel and before the pawl has comete rest' at the end of its the wheel-only when attempt is madeto operativel stroke.

3. In a register, an adding wheel, a niember engaging and turning-said wheel, and means for preventing .the overthrow of said wheel, said means beine' adapted to engage said member andlock the same to the wheel only when attempt is made to produce overthrow and before' the member has come to rest at the end of its operative stroke.

4, Ina register, an adding wheel, a pawl engaging and turning said wheel, mechanismv for moving said pawl, and means for prevent ing the overthrow of said wheel, saidv means being 'adapted to engage said pawl and lock the saine to the wheel only when attempt is made to produce overthrow and before the pawl has come to rest at the end of its oper ,ative stroke.

5. Ina register, a toothed adding wheel,

a pawl for vengaging the teeth of said wheel,

mechanisnifor moving said pawl, and means y for locking the pawl to said wheel, said means becoming effective only when an attempt is made to produce overthrow .of the wheel and before the pawl'has come to rest' at the end of its operative stroke.

tempt ismad'e to produce. overthrow of thewheel and before the pawl has come to rest at -7. In a register, a toothed adding wheel, a pawl-carrying arm, al pawlI on said arm for engaging the teeth of theadding Wheel, and a detent ior said pawl carried by the s aid arm adapted to engage the pawl and lock it into the end of its operative stroke.

engagement with `the-addin,f wheel', said detent becoming voperative only. when attempt is made toproduce overthrow of the adding wheel and before the pawl has'come to rest atA the end of its operative stroke.

8. Ina register, a -tootliedadding wheel, a pawl-carryiiig arm, a4 pawl on said arm for engaging the teeth 01"' the adding wheel, and a detent for said pawl carried by thesaid arm, said detent having a hooked end that is adapted toengage -tlie'pawl and lock it into engagement'withthe adding wheel, said -detcntbecoming operative only when attempt is inade to Vproduce overthrow of the; adding wheel. A, i'

9. In a register, a toothedadding wheel, a main operating member, a pawl-carrying lever that is moved in one direction i.byf-gthe said main operating member, a pawlionthe pawl-carry-ing lever for engaging withaiid turning the adding wheel, means on the Imain operating member for engaging with the paw] and throwing the 'same into engagement with the wheel, and a detent carriedA by the pawl-carrying lever and adapted to engage the pawl and lock the same into the teeth of overthrow the adding wheel. Y

10. In a register, a toothed adding --wheel, a main operating lever, a pawl-carrying lever that is moved in one direction .by the said main operating member, a pawl on the pa-.Wl-v carrying lever for engaging with'and. turning the adding wheel, sai'd pawlj having arearward extension, means on the mainfoperating member` for engaging with the .extension -on the pawl whereby the pawl is lockedjnto engagement with th'ewheel, anch-fa 'detent carried by the pawl-carryingl lever and' adapted to engage the extensionpnthe'pawl only when attempt is made to overthrowthe Aadding wheel.

11. In a register, an adding wheel; a pawlcarrying arm-- pivoted (no-axially with the said wheel, a pawl on said arm adaptgd to en`-l gage and turn the wheeh a detent'inojfnted on the arm andv extending rearwardly of 'the pawl, said detent being adapted`lt0 engag the pawl to lock it to the wheel o y when an attempt is made to produce overthrowof the wheel and before the pawl hascome to rest i at the end of itsoperative stroke.'

- pawl-carrying arm' pivoted c'o-axially there-l with, a pawl mo'unted on said arm and adapting a weighted extensiom; a ldetent mounted pawl.

' carrying arm pivoted co-axially with the said kand, turn the wheel, said pawl aving a rearl advance movement thereof, a detent mounted vance movemento the latter.

into engagement with-the wheel only when .an attempt is made to overthrow' th'ewheel, and means for moving the detent outyofp'- carried, by the main operating lever 'and -ried by the main operating lever and adapted to engage the extension on the pawl during 12.. In a register, -'an adding wheel, -a pawlwheel, a pawl on said arm ada ted to' engage Ward extension, .a detent mounted on the arm and extending rearwardly of the pawl, said detent being adapted to engage the extension on the pawl'to lock the latter to the wheel onlywhen an attempt is made 'to produce overthrow pf the'wheel.

13.- In aca h register, an adding wheel, a pawl-carrying arm pivoted co-axially therewith, a-pawl mounted on said a;m and adapted to engage and turn said` wheel duringthe on said pawl-carrying arm andjadapted to engage and hold the pawl .into engagement with the wheel onl i. when an attempt is made to overthrow t e Wheel, and means for moving the detent out of o erative relation with respect to the awl at t e end -of the ad- V 14. Ina cash register, an adding wheel, a

edte engage and turn said wheel during the' advance movementthereof, said pawl havon said awl-carrying arm and ada ted to engage t e said extension and hold t e pawl erative relation withrespect to thepawl atthe end o f lthe advance movement ofythe latter.

15. Ina .cash register, an adding'wheel, a mainK operating lever and la pawl-carrying arm journaled co-axially with saidlwheel, a pawl carried by said arm, a resilient member the advance moiv'ement .oll the latter to Icause the pawl to engage withfthe wheel, and means for throvnng the resilient member ont oi engagement' with the pawl extension so that the latter may disengage the'wheel at the end of the advance movement of the Wheel, a pawl *carried bly -at the end of t arm `wheel, an

17. In sasb register. an addingwheel, a'

` main sperm-Ing lever and a pawl-carrying! erm pivoted ce axiallywvith ,the addingl.

said arm for engagmg and turning the sai Wheel, a spring plate carried by the main operating lever forengaging with the pawl and holding it in engagement with the Wheelduring the advance movement thereof, a detent carried by the awl-carrying arm and adapted to extend elow the pawl While the spring late is in .engagement therewith, whereby W en an attem t 1s made to produce overthrow of the.

adding. wheel, Athe detent will .engage the pawl and hold it into engagement with the wheel, and means for disengaging the plate from the pawl at the end of the advance movement thereof.

18. In a cash registerfanaddin'g wheel, a main operating lever and a pawl-carrying arm pivoted -co-axially with said `wheel, a pawl carried on. said arm for turning the wheel, said pawl having a rearward extension, a s ring plate carried by the main operating ever adapted to engage the extension on the'pawl to rock lthe same into engagement with the wheel during the advance A movement thereof, and means for disengaging the spring lplate from the pawl'extension e advance 'movement thereof so that the pawl is released from the Wheel. 19. In aeash register, an adding wheel, a main operating. lever `and a. pawl-carrying pivoted co -axially with the adding whee ing and turning the said wheel, said pawl having a weighted extension," a spring plate carriedby themain operating lever for engaging with the pawl extension whereby the pawl is held in engagement with the -wheel during the advance movement thereof, a detent carried by the awl-carrying arnrand ada ted to extend be ow the pawl extension while the spring plate is in engagement therewith, whereby when an attempt is made to produce overthrow 'of the addlngwheel, the

detent will engage the pawl extension and hold the (pawll into engagement with the from the pawl extension at the end of the advance movement thereof.

20. In a cash register, an addin wheel, a main operating lever and a paw -carrying armfpivotedco-axially with said wheel, a pawl carried on said arm for turning the wheel, said `pawl having arearward extension, a spring plate Carried by the main operating lever adapted to engage the extension .on the pawl to rock the same into engagement with the wheel during the advance movement thereof, means for disengaging the spring plate from the pawl extensin at the end of the advance movement thereof so that the pawl is released from the wheel, and a drawer for moving the operating lever.

21. ln a cash register,an adding wheel., a main operating lever and a pawl-carrying arm pivoted cro-axially. with said Wheel, a

a pawl carried by said arm for engagmeans for disengaging the plate aubade-A v avessev pawl carried by said arm for turning the wheel, said pawl having a rearward exten- Sn, a platecarried by the main operating lev'er and adapted to engage the said exten-,

f sion to throw the pawl into engagement. with Y the wheel during-'the advance movement of the latter, a detent carried by the pawl-car- ,v tying arm, said detent having a hook that is adapted to project under the extensin on the pawl during the advance movement to prevent disengagement of the pawl from the wheel, andmeans for removing the 'spring plate land the detent from operative relation .with the pawl at' the end'ofthe advance movement of the latter. v 22. In a cash register, an addin wheel, a-

v main operating lever and' a paw -carrying 'arm Apivoted co-a'xially with said wheel, a

y f pawl carried by said arm for turning the.

wheel, said arm having a rearward extension, a plate carried by the main operating lever and adapted-to engage the said extension'to throw the pawl into engagement -with the wheel during the advance movement of the latter, a detent carried by-fthe 'pawl-carrymg arm, said detent havinga hook that is '307 .the spring plate and the'detent from opadapted to project under the extension on the pawl during the advance movement to prevent disengagementof the pawl from the wheel,a cash drawer, `and meansl for remov- .f eratlve relation with the awl at the end of: .the closing movement of t e drawer.

'23. In a'cash register,ja cash drawer, an

' ing the said mechanism out of operative relation with respect to the said member at the endof the advance movement. of the latter. .45.'

24. In a cash register, a-eash drawer, an adding wheel, a awlv for turning said wheel,

o erated by. the'drawer for advancin the'paw mechanism moving with the paw and ada tedto engage the latter to lock it to the w eel only whenl an @attempt made to overthrow the wheel, and means operated bythe drawer at the end of the advance A movement'. .of vthe pawl'to throw the said u `vmechanismout of operative relation with respect to the pawl,`

2.15; In a cash reg1ster,a cashdrawer, an.

il* addingiwheel, a awl for turning said wheel,

raam 0, rated 'y the drawer for dvicin" 4the' paw ,fmechanismpmoving with the paw 6() .81nd adapted to engage the latter to lock it to thewheel only when an attempt is made to overthrow the latter, a lever, a by-pass pawl 'eaed .by Said'flever, means on the drawer theipawl and lever at the end of the pawl.

'closing movement of the drawer, and connections betweenv the lever and the said mechanism for throwing the latter out 'of operative relation with respect to the pawl.

26. ln aeash register, an adding wheel, a drawer, a main operatinglever and a pawlcarrying arm journaled co-.axially with said wheel, a pawl'carried .by 'said arm, a resilient member carriedh by the main operating lever and adapted to engage the pawl during the advance movement thereof to cause the pawl to engage with the wheel, and means operated Qby the drawer for throwing the resilient member out'of engagement with the pawl so that the latter may dsengage the wheel at the end of the advance movement of the 27. In a cash register, .an adding wheel, a drawer, a main operating lever and a pawlcarrymg arm journaled (zo-axially with said wheel, a pawl carried by said arm, a spring plate carriedby the main operating lever and .adapted to. engage the pawl during the advance movement thereof to cause the pawl to enga e with the wheel, a d etent carried on the paw -ca arm and adapted to engage with the pahlflycliy when an 'attempt is made to overthrow the adding vwheel,4 and means operated by the drawer for throwing the spring plate and the detent out of operative relation withthe pawl so that the .latter ma disengage the wheel at the end of the a vanee movement of the pawl.

28. In a cash register, an adding'wheel, a

drawer, al main operating lever and a pawlcarrying -arm' journaled co-axiallywith said wheel, a pawl carriedby said arm, s aid pawl having a rearward extension,'a spring. plate' `carried by the main operating lever and adapted to engage-the extension -on the pawl duringV the advance movement. thereof to rock the pawl into engagement with the wheel, a detent carried on the awl-carrying arm and adapted to engage with the extension on the pawl onl when an attempt is made to overthrow t e adding Wheel, and means'operated by the drawer for turning the spring plate and the detent 'out of operative relation with the pawl so that the latter may disengage Vthe wheel at thefend of the advance movement of the pawl. l

29. Ina cash register, an adding wheel, a drawer, a main operating lever land a awlcarrying arm' journaled co-axially wit the saidwheel, a pawl carried by said arm., fa spring plate carried' by the main o erating lever and adapted to engage the paw during the advance movement thereof to cause the pawl to engage with the wheel, a detent carfried by the pawl-carrymg arm and adapted to engage the pawl when an attempt is made tooverthrow the adding wheel, a lever that is operated by the drawer at the endv of its closing movement, and connections' between the lever and the spring plate for throwing i the said plate andthe det-ent out of operative relation with the pawl.

30. In a cash register, .an adding wheel, a drawer, a main operating lever and a pawlcarrying arm journaled (1o-axially with the said wheel, a pawl carried by said erin, said pawl having a rearward extension, a spring plate carried by the main operating,r lever and l -adalptelto engage the extension on the pawljl dui-lng the ladvance movement there-ot' to -eause the pawl to engage with the wheel, a

detent carried b y the pawl-earrying ari'n and i l adapted to engage the pawl when an attempt .the pawl.

s. E." Fours, H. P. MlLLER. 

